Home / 51,386.43-77,084.78-13,947.11

Finding the Fourth Proportional to 51,386.43, 77,084.78 and 13,947.11

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Solution

The fourth proportional to 51,386.43, 77,084.78 and 13,947.11 is: 20,922.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,386.43 : 77,084.78 = 13,947.11 : x
  2. Step 2: Convert to fraction form
    51,386.43/77,084.78 = 13,947.11/x
  3. Step 3: Cross multiply
    51,386.43x = 77,084.78 × 13,947.11
  4. Step 4: Simplify right side
    51,386.43x = 1,075,109,450.83
  5. Step 5: Solve for x
    x = 1,075,109,450.83/51,386.43
  6. Step 6: Final answer
    x = 20,922.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.